What Would You Do?

This is a story that I started on DeviantArt that allowed readers to post suggestions for what they wanted to have happen next. I have two versions uploaded, uncompressed and compressed.

You created a size changing device that you begin testing it on your sister, sister's friend.

PLOT SPOILERS!!!

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You begin by shrinking your sister's friend Maggie. After Maggie gets shrunk you eventually feel bad and shrink Tiffany smaller than Maggie. Maggie and Tiffany eventually become the same size and start catfighting. Then you decide grow them to a gigantic size while they continue to catfight. Tiffany gets shrunk down. A set aside while you begin exploring Maggie. Maggie's sister shows up and you decide to go near Maggie's sister Julie's feet. While exploring Maggie tries to shrink herself trying to you but instead accidentally grows Tiffany to a giant size. Maggie begins to shrink and meets up with you and has sex with you. Your mom shows up and finds you naked with Maggie on Julie's big toe.